html,
body {
    height: 100%;
}

body {
    margin: 0;
    display: flex;
    flex-direction: column;
}

/*noinspection CssInvalidHtmlTagReference*/
app {
    margin: 60px auto;
    font-size: 10px;
    position: relative;
    border-top: 1.1em solid rgba(238, 110, 115, 0.2);
    border-right: 1.1em solid rgba(238, 110, 115, 0.2);
    border-bottom: 1.1em solid rgba(238, 110, 115, 0.2);
    border-left: 1.1em solid #ee6e73;
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-animation: load8 1.1s infinite linear;
    animation: load8 1.1s infinite linear;
}

/*noinspection CssInvalidHtmlTagReference*/
app,
app:after {
    border-radius: 50%;
    width: 8em;
    height: 8em;
}

@-webkit-keyframes load8 {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes load8 {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}
